CN217505422U - Concrete elasticity modulus measuring device - Google Patents
Concrete elasticity modulus measuring device Download PDFInfo
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- CN217505422U CN217505422U CN202221481278.1U CN202221481278U CN217505422U CN 217505422 U CN217505422 U CN 217505422U CN 202221481278 U CN202221481278 U CN 202221481278U CN 217505422 U CN217505422 U CN 217505422U
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Abstract
The utility model discloses a concrete elasticity modulus measuring device belongs to the experimental technical field of concrete mechanical properties, and the collar of two coaxial settings, two install a plurality of connecting rods and amesdial between the collar, circumference threaded connection has a plurality of fasteners on the collar, be equipped with the annular chamber in the collar, the annular chamber internal rotation is connected with the ring gear, install the gear on the fastener, the spacing rotation of gear is connected in the annular chamber, the gear with the meshing of ring gear. The utility model can drive all the fasteners to rotate in the same direction by rotating one of the fasteners, thereby saving manpower; and the displacements generated by the rotation of all the fasteners are kept consistent, so that the concrete test piece can be arranged on the inner side of the mounting ring in the middle, and the measuring effect is ensured; and the positioning depth of the fastener to the concrete test piece is consistent, so that the uniformity of the pressure applied to the concrete test piece by the press machine is ensured.
Description
Technical Field
The utility model belongs to the technical field of the concrete mechanical properties is experimental, concretely relates to concrete elasticity modulus measuring device.
Background
According to statistics, 80% of the cracking phenomenon of the existing concrete is caused by deformation factors such as shrinkage. In the research on the shrinkage cracking phenomenon of concrete, the accurate calculation of the constraint stress of the concrete is a main means for predicting the cracking performance of the concrete.
The concrete elastic modulus survey equipment that uses at present, it is fitted with a contraceptive ring and rotates respectively through the manual work and fix a position the concrete sample with fastening screw on the lower ring, because artifical pivoted deviation for fastening screw's removal displacement can't be confirmed, makes the concrete sample can't install between two parties and fit on fitting with a contraceptive ring and the lower ring is inboard, thereby influences measuring effect.
Therefore, it is necessary to provide a concrete elastic modulus measuring device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a concrete elasticity modulus measuring device for fastening screw for solving among the prior art concrete elasticity modulus measuring equipment need rotate respectively when fixing a position the concrete sample, can't confirm the displacement of rotation and make the concrete sample can't install between two parties and go up the ring sum and encircle the inboard, thereby influence the problem of measurement effect.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a concrete elasticity modulus measuring device, include: the mounting structure comprises two coaxially arranged mounting rings, wherein a plurality of connecting rods and a dial indicator are installed between the two mounting rings, a plurality of fasteners are connected to the mounting rings in a circumferential threaded manner, an annular cavity is formed in each mounting ring, a toothed ring is connected to the annular cavity in a rotating manner, a gear is installed on each fastener, the gear is connected to the annular cavity in a limiting and rotating manner, and is meshed with the toothed ring, one of the fasteners is rotated to drive the gear to rotate so that the toothed ring rotates to enable the fasteners to rotate simultaneously.
Further, be equipped with the keyway on the fastener, be equipped with the mounting hole on the gear, fastener sliding connection be in the mounting hole, install on the mounting hole with keyway complex convex key, the keyway with the convex key cooperation is so that the fastener can drive gear revolve.
Further, annular chamber inner wall with fixedly connected with spacing ring on one of them of ring gear periphery wall, annular chamber inner wall with install on another of ring gear periphery wall with spacing ring complex spacing groove, the spacing ring with the spacing groove cooperation is so that the ring gear can spacing rotation be connected in the annular chamber.
Further, the dial indicator is electrically connected with a concentrator, and the concentrator is electrically connected with a computer terminal.
Further, the fastener include the screw and with screw threaded connection's knob, the keyway is seted up on the screw, the keyway is followed the knob direction intercommunication sets up.
Furthermore, a screw hole is formed in the mounting ring, the screw hole and the mounting hole are coaxially arranged, and the fastening piece is in threaded connection with the screw hole.
As described above, the utility model discloses a concrete elasticity modulus measuring device has following beneficial effect: through the design of the structure, one of the fasteners can be rotated to drive all the fasteners to rotate in the same direction, so that the labor is saved; and the displacements generated by the rotation of all the fasteners are kept consistent, so that the concrete test piece can be arranged on the inner side of the mounting ring in the middle, and the measuring effect is ensured; and the positioning depth of the fastener to the concrete test piece is consistent, so that the uniformity of the pressure applied to the concrete test piece by the press machine is ensured.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:
fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a perspective cut-away view of a mounting ring of an embodiment of the present invention;
FIG. 3 is a top view of a mounting ring according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of the annular cavity according to the embodiment of the present invention;
fig. 5 is an exploded view of the installation of a fastener in accordance with an embodiment of the present invention.
The drawings are numbered as follows: 1. a mounting ring; 101. an annular cavity; 102. a toothed ring; 103. a gear; 104. mounting holes; 105. a convex key; 106. a limiting ring; 107. a limiting groove; 108. a screw hole; 2. a connecting rod; 3. a dial indicator; 4. fasteners, 401, keyways; 402. screws, 403, knobs; 5. a hub; 6. and (4) a computer terminal.
Detailed Description
Referring to fig. 1 to 5, the present invention provides a concrete elasticity modulus measuring device, including: the mounting structure comprises two coaxially arranged mounting rings 1, wherein a plurality of connecting rods 2 and a dial indicator 3 are arranged between the two mounting rings 1, a plurality of fasteners 4 are connected to the mounting rings 1 in a threaded manner in the circumferential direction, an annular cavity 101 is arranged in each mounting ring 1, a toothed ring 102 is rotatably connected to the annular cavity 101, a gear 103 is arranged on each fastener 4, the gear 103 is connected to the annular cavity 101 in a limiting and rotating manner, the gear 103 is meshed with the toothed ring 102, and one fastener 4 is rotated to drive the gear 103 to rotate so that the toothed ring 102 rotates to enable the fasteners 4 to rotate simultaneously.
The working principle of the technical scheme is as follows: before measurement, the concrete elasticity modulus measuring device is placed on a plane, one of the fastening pieces 4 is rotated, as shown in fig. 2, so that the gear 103 is driven to rotate, the toothed ring 102 is driven to rotate, all the fastening pieces 4 are driven to rotate in the same direction, the fastening pieces 4 are far away from each other, a concrete sample is prevented from being arranged on the inner sides of the two mounting rings 1, and then one of the fastening pieces 4 is rotated in the opposite direction, all the fastening pieces 4 are close to each other, and the concrete sample is positioned; during measurement, the concrete elasticity modulus measuring device with the concrete test piece is placed under a press machine, pressure is applied to the concrete test piece through the press machine, and the elasticity modulus of the measured concrete test piece is calculated through observing the pressure value of the press machine and the numerical value of a dial indicator.
The beneficial effects of the above technical scheme are that: through the design of the structure, one of the fastening pieces 4 can be rotated to drive all the fastening pieces 4 to rotate in the same direction, so that the labor is saved; and the displacements generated by the rotation of all the fasteners 4 are kept consistent, so that the concrete test piece can be arranged on the inner side of the mounting ring 1 in the middle, and the measuring effect is ensured; and the positioning depth of the fastener 4 to the concrete test piece is consistent, so that the uniformity of the pressure applied to the concrete test piece by the press machine is ensured.
In an embodiment of the present invention, a key slot 401 is disposed on the fastening member 4, a mounting hole 104 is disposed on the gear 103, the fastening member 4 is slidably connected in the mounting hole 104, a protruding key 105 engaged with the key slot 401 is mounted on the mounting hole 104, the key slot 401 is engaged with the protruding key 105 so that the fastening member 4 can drive the gear 103 to rotate.
The working principle of the technical scheme is as follows: as shown in fig. 2, the fastening member 4 is engaged with the convex key 105 through the key slot 401, so that the fastening member 4 can slide along the axial direction of the mounting hole 104, and can drive the gear 103 to rotate when the fastening member 4 is rotated, and when the fastening member 4 is rotated, the fastening member 4 generates axial displacement because the fastening member 4 is in threaded connection with the mounting ring 1, and the fastening member 4 drives the gear 103 to rotate, thereby driving the toothed ring 102 to rotate.
The beneficial effects of the above technical scheme are that: by arranging the key groove 401 on the fastener 4, the fastener 4 can be conveniently screwed into the concrete sample for positioning; through the cooperation of keyway 401 and convex key 105, can also drive gear 103 and rotate when having realized that fastener 4 can produce axial displacement when rotating.
In an embodiment of the present invention, a limit ring 106 is fixedly connected to one of the inner wall of the annular cavity 101 and the outer peripheral wall of the gear ring 102, and a limit groove 107 engaged with the limit ring 106 is installed on the other of the inner wall of the annular cavity 101 and the outer peripheral wall of the gear ring 102, wherein the limit ring 106 is engaged with the limit groove 107 to enable the gear ring 102 to be connected in the annular cavity 101 in a limiting rotation manner.
The working principle and the beneficial effects of the technical scheme are as follows: as shown in fig. 2, when the toothed ring 102 rotates, the matching between the limiting ring 106 and the limiting groove 107 prevents the toothed ring 102 from shifting during the rotation process, so that all the fastening members 4 cannot be driven to rotate simultaneously, and the stability of the toothed ring 102 during the rotation process is ensured.
In one embodiment of the present invention, the dial indicator 3 is electrically connected to a hub 5, and the hub 5 is electrically connected to a computer terminal 6.
The working principle of the technical scheme is as follows: as shown in fig. 1, the dial indicator 3 is an electronic dial indicator, a plurality of electronic dial indicators are electrically connected with a hub 5, and the hub 5 is electrically connected with a computer terminal 6; the two electronic dial gauges upload the measurement data to the computer terminal 6 in real time, and the computer terminal 6 calculates the corresponding shrinkage strain.
The beneficial effects of the above technical scheme are that: the corresponding shrinkage strain is calculated through the computer terminal 6, calculation is facilitated, and manpower is saved.
In an embodiment of the present invention, the fastening member 4 includes a screw 402 and a knob 403 connected to the screw 402, the key slot 401 is disposed on the screw 402, and the key slot 401 is disposed along the direction of the knob 403.
The working principle of the technical scheme is as follows: as shown in fig. 5, during installation, the opening direction of the key slot 401 of the screw 402 is slid in along the axial direction of the installation hole 104, at this time, the key slot 401 is matched with the convex key 105, then the opening sides of the key slot 401 of the knob 403 and the screw 402 are installed and fixed, the opening of the key slot 401 is sealed after the knob 403 is installed on the screw 402, and when the fastener 4 needs to be rotated, the knob 403 is rotated.
The beneficial effects of the above technical scheme are that: through the design of the structure, the installation and the disassembly of the fastening piece 4 are convenient; the fastener 4 is rotated by rotating the knob 403, so that the labor is saved; knob 403 is mounted on screw 402 and seals the opening of keyway 401 to prevent screw 402 from sliding out of mounting hole 104.
In an embodiment of the present invention, the mounting ring 1 has a screw hole 108 formed thereon, the screw hole 108 is coaxial with the mounting hole 104, and the fastening member 4 is in threaded connection with the screw hole 108.
The working principle and the beneficial effects of the technical scheme are as follows: as shown in fig. 2, the fastening member 4 is threadedly coupled to the threaded hole 108, so that when the fastening member 4 is rotated, the fastening member 4 can be displaced in the axial direction of the threaded hole 108, and the fastening member 4 can be easily positioned and supported on the gear 103.
Finally, the above preferred embodiments are only intended to illustrate the technical solution of the invention and not to limit it, while the invention has been described in detail by the above preferred embodiments, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention defined by the claims.
Claims (6)
1. A concrete elastic modulus measuring device, characterized by comprising:
the mounting structure comprises two coaxially arranged mounting rings, wherein a plurality of connecting rods and a dial indicator are installed between the two mounting rings, a plurality of fasteners are connected to the mounting rings in a circumferential threaded manner, an annular cavity is formed in each mounting ring, a toothed ring is connected to the annular cavity in a rotating manner, a gear is installed on each fastener, the gear is connected to the annular cavity in a limiting and rotating manner, and is meshed with the toothed ring, one of the fasteners is rotated to drive the gear to rotate so that the toothed ring rotates to enable the fasteners to rotate simultaneously.
2. A concrete elastic modulus measuring device according to claim 1, characterized in that: the gear fixing device is characterized in that a key groove is formed in the fastener, a mounting hole is formed in the gear, the fastener is connected in the mounting hole in a sliding mode, a convex key matched with the key groove is installed on the mounting hole, and the key groove is matched with the convex key to enable the fastener to drive the gear to rotate.
3. A concrete elastic modulus measuring device according to claim 1, characterized in that: annular chamber inner wall with fixedly connected with spacing ring on one of them of ring gear periphery wall, annular chamber inner wall with install on another of ring gear periphery wall with spacing ring complex spacing groove, the spacing ring with the spacing groove cooperation is so that the ring gear can spacing rotation be connected in the annular chamber.
4. A concrete elastic modulus measuring device according to claim 1, characterized in that: the dial indicator is electrically connected with a concentrator, and the concentrator is electrically connected with a computer terminal.
5. A concrete elastic modulus measuring device according to claim 2, characterized in that: the fastener includes the screw and with screw threaded connection's knob, the keyway is seted up on the screw, the keyway is followed the knob direction intercommunication sets up.
6. A concrete elastic modulus measuring device according to claim 2, characterized in that: the mounting ring is provided with a screw hole, the screw hole and the mounting hole are coaxially arranged, and the fastening piece is in threaded connection with the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221481278.1U CN217505422U (en) | 2022-06-14 | 2022-06-14 | Concrete elasticity modulus measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221481278.1U CN217505422U (en) | 2022-06-14 | 2022-06-14 | Concrete elasticity modulus measuring device |
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| Publication Number | Publication Date |
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| CN217505422U true CN217505422U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221481278.1U Active CN217505422U (en) | 2022-06-14 | 2022-06-14 | Concrete elasticity modulus measuring device |
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| CN (1) | CN217505422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110039A (en) * | 2023-08-09 | 2023-11-24 | 黄山交投公路工程试验检测有限公司 | Concrete elastic modulus tester |
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2022
- 2022-06-14 CN CN202221481278.1U patent/CN217505422U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110039A (en) * | 2023-08-09 | 2023-11-24 | 黄山交投公路工程试验检测有限公司 | Concrete elastic modulus tester |
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